104406 Federal Register / Vol. 89, No. 246 / Monday, December 23, 2024 / Rules and Regulations 

designated as an extension to the Class 

D or Class E surface area at Buckley 

Space Force Base, CO. 

The lateral boundaries of the airport’s 

Class D and Class E surface areas are 

insufficiently sized and expanded to the 

southeast to better contain IFR arrivals 

when less than 1,000 feet above the 

surface and departing IFR aircraft until 

reaching the next adjacent airspace. 

Additionally, an approximately 0.30 

nautical mile gap between Class E and 

Class G airspaces is closed by merging 

the Buckley Space Force Base and 

Centennial Airport surface areas. As 

such, the Buckley Space Force Base 

Class D and Class E surface areas are 

modified to be within a 4.4-mile radius 

of the airport, within 2 miles northeast 

and 4 miles southwest of the airport’s 

151° bearing extending to 7.1 miles 

southeast, and within 4 miles south and 

4.4 miles north of the airport’s 270° 

bearing extending to 4.7 miles west, 

excluding that airspace within the 

Denver International Airport Class B 

and Centennial Airport Class D airspace 

areas. 

Buckley Space Force Base’s Class E 

airspace designated as an extension to 

the Class D or Class E surface area is 

revoked. The Class E extension is no 

longer required due to the expansion of 

the airport’s surface area airspace. 

Finally, the administrative portions of 

the airport’s legal descriptions are 

modified to match the FAA’s database. 

The airport’s name on line two of both 

legal descriptions is changed to read 

‘‘Buckley Space Force Base, CO.’’ 

Additionally, line four of both surface 

area legal descriptions now include 

‘‘Denver International Airport, CO’’ and 

‘‘Centennial Airport, CO’’ as references, 

as they are used to define the airport’s 

surface areas. 

Regulatory Notices and Analyses 

The FAA has determined that this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. It, therefore: (1) is not a 

‘‘significant regulatory action’’ under 

Executive Order 12866; (2) is not a 

‘‘significant rule’’ under DOT 

Regulatory Policies and Procedures (44 

FR 11034; February 26, 1979); and (3) 

does not warrant preparation of a 

regulatory evaluation as the anticipated 

impact is so minimal. Since this is a 

routine matter that only affects air traffic 

procedures and air navigation, it is 

certified that this rule, when 

promulgated, does not have a significant 

economic impact on a substantial 

number of small entities under the 

criteria of the Regulatory Flexibility Act. 

Environmental Review 

The FAA has determined that this 

action qualifies for categorical exclusion 

under the National Environmental 

Policy Act in accordance with FAA 

Order 1050.1F, Environmental Impacts: 

Policies and Procedures, paragraph 5– 

6.5.a. This airspace action is not 

expected to cause any potentially 

significant environmental impacts, and 

no extraordinary circumstances exist 

that warrant preparation of an 

environmental assessment. 

Lists of Subjects in 14 CFR Part 71 

Airspace, Incorporation by reference, 

Navigation (air). 

The Amendment 

In consideration of the foregoing, the 

Federal Aviation Administration 

amends 14 CFR part 71 as follows: 

PART 71—DESIGNATION OF CLASS A, 

B, C, D, AND E AIRSPACE AREAS; AIR 

TRAFFIC SERVICE ROUTES; AND 

REPORTING POINTS 

■ 1. The authority citation for 14 CFR 

part 71 continues to read as follows: 

Authority: 49 U.S.C. 106(f), 40103, 40113, 

40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959– 

1963 Comp., p. 389. 

§ 71.1 [Amended] 

■ 2. The incorporation by reference in 

14 CFR 71.1 of FAA Order JO 7400.11J, 

Airspace Designations and Reporting 

Points, dated July 31, 2024, and 

effective September 15, 2024, is 

amended as follows: 

Paragraph 5000 Class D Airspace. 

* * * * * 

ANM CO D Aurora, CO [Amended] 

Buckley Space Force Base, CO 

(Lat. 39°42′06′′ N, long. 104°45′07′′ W) 

Denver International Airport, CO 

(Lat. 39°51′42′′ N, long. 104°40′23′′ W) 

Centennial Airport, CO 

(Lat. 39°34′12′′ N, long. 104°50′57′′ W) 

That airspace extending upward from the 

surface to but not including 7,500 feet MSL 

within a 4.4-mile radius of the airport, within 

2 miles northeast and 4 miles southwest of 

the airport’s 151° bearing extending to 7.1 

miles southeast, and within 4 miles south 

and 4.4 miles north of the airport’s 270° 

bearing extending to 4.7 miles west, 

excluding that airspace within the Denver 

International Airport Class B and Centennial 

Airport Class D airspace areas. This Class D 

airspace area is effective during the specific 

dates and times established in advance by a 

Notice to Air Missions. The effective date 

and time will thereafter be continuously 

published in the Chart Supplement. 

* * * * * 

Paragraph 6002 Class E Airspace Areas 

Designated as a Surface Area. 

* * * * * 

ANM CO E2 Aurora, CO [Amended] 

Buckley Space Force Base, CO 

(Lat. 39°42′06′′ N, long. 104°45′07′′ W) 

Denver International Airport, CO 

(Lat. 39°51′42′′ N, long. 104°40′23′′ W) 

Centennial Airport, CO 

(Lat. 39°34′12′′ N, long. 104°50′57′′ W) 

That airspace extending upward from the 

surface to but not including 7,500 feet MSL 

within a 4.4-mile radius of the airport, within 

2 miles northeast and 4 miles southwest of 

the airport’s 151° bearing extending to 7.1 

miles southeast, and within 4 miles south 

and 4.4 miles north of the airport’s 270° 

bearing extending to 4.7 miles west, 

excluding that airspace within the Denver 

International Airport Class B and Centennial 

Airport Class D airspace areas. This Class E 

airspace area is effective during the specific 

dates and times established in advance by a 

Notice to Air Missions. The effective date 

and time will thereafter be continuously 

published in the Chart Supplement. 

* * * * * 

Paragraph 6004 Class E Airspace Areas 

Designated as an Extension to a Class D or 

Class E Surface Area. 

* * * * * 

ANM CO E4 Aurora, CO [Removed] 

Aurora, Buckley ANG Base, CO 

(Lat. 39°42′06′′ N, long. 104°45′07′′ W) 

* * * * * 

Issued in Des Moines, Washington, 

December 17, 2024. 

B.G. Chew, 

Group Manager, Operations Support Group, 

Western Service Center. 

[FR Doc. 2024–30531 Filed 12–20–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2023–1477; Airspace 

Docket No. 19–ANM–27] 

RIN 2120–AA66 

Modification of Class D Airspace; 

Revocation of Class E Airspace; 

Centennial Airport, Denver, CO 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action modifies Class D 

airspace and revokes Class E airspace 

designated as an extension to a Class D 

or Class E surface area at Centennial 

Airport (APA), Denver, CO. 

Additionally, this action amends the 

text associated with Centennial 


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Federal Register / Vol. 89, No. 246 / Monday, December 23, 2024 / Rules and Regulations 104407 

Airport’s legal description. This action 

supports instrument flight rules (IFR) 

and visual flight rules (VFR) operations 

at the airport. 

DATES: Effective date 0901 UTC, 

February 20, 2025. The Director of the 

Federal Register approves this 

incorporation by reference action under 

1 CFR part 51, subject to the annual 

revision of FAA Order JO 7400.11 and 

publication of conforming amendments. 

ADDRESSES: A copy of the Notice of 

Proposed Rulemaking (NPRM), all 

comments received, this final rule, and 

all background material may be viewed 

online at www.regulations.gov using the 

FAA Docket number. Electronic 

retrieval help and guidelines are 

available on the website. It is available 

24 hours each day, 365 days each year. 

FAA Order JO 7400.11J, Airspace 

Designations and Reporting Points, and 

subsequent amendments can be viewed 

online at www.faa.gov/air_traffic/ 

publications/. You may also contact the 

Rules and Regulations Group, Office of 

Policy, Federal Aviation 

Administration, 800 Independence 

Avenue SW, Washington, DC 20591; 

telephone: (202) 267–8783. 

FOR FURTHER INFORMATION CONTACT: 

Keith T. Adams, Federal Aviation 

Administration, Western Service Center, 

Operations Support Group, 2200 S 

216th Street, Des Moines, WA 98198; 

telephone (206) 231–2428. 

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code. 

Subtitle I, Section 106, describes the 

authority of the FAA Administrator. 

Subtitle VII, Aviation Programs, 

describes in more detail the scope of the 

agency’s authority. This rulemaking is 

promulgated under the authority 

described in Subtitle VII, Part A, 

Subpart I, Section 40103. Under that 

section, the FAA is charged with 

prescribing regulations to assign the use 

of the airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it modifies 

Class D airspace and revokes Class E 

airspace designated as an extension to a 

Class D or Class E surface area in 

support of IFR and VFR operations at 

Centennial Airport, Denver, CO. 

History 

The FAA published a notice of 

proposed rulemaking for Docket No. 

FAA–2023–1477 in the Federal Register 

(89 FR 73020; September 09, 2024), 

proposing to modify Class D airspace 

and revoke Class E airspace designated 

as an extension to Class D or Class E 

surface area at Centennial Airport, 

Denver, CO. Interested parties were 

invited to participate in this rulemaking 

effort by submitting written comments 

on the proposal to the FAA. Four 

comments were received in favor of the 

proposal. 

Incorporation by Reference 

Class D and Class E4 are published in 

paragraph 5000 and 6004, respectively, 

of FAA Order JO 7400.11, Airspace 

Designations and Reporting Points, 

which is incorporated by reference in 14 

CFR 71.1 on an annual basis. This 

document amends the current version of 

that order, FAA Order JO 7400.11J, 

dated July 31, 2024, and effective 

September 15, 2024. FAA Order JO 

7400.11J is publicly available as listed 

in the ADDRESSES section of this 

document. These amendments will be 

published in the next update to FAA 

Order JO 7400.11. 

FAA Order JO 7400.11J lists Class A, 

B, C, D, and E airspace areas, air traffic 

service routes, and reporting points. 

The Rule 

This action amends 14 CFR part 71 by 

modifying the Class D airspace and 

revoking the Class E airspace designated 

as an extension to a Class D or Class E 

surface area at Centennial Airport, 

Denver, CO, in support of IFR and VFR 

operations at the airport. 

The airport’s Class D airspace lateral 

boundary has been modified to extend 

3.9 nautical miles (NM) northwest and 

4.6 NM southeast from the airport’s 038° 

bearing extending 4.6 NM northeast. 

This expansion—along with the 

modification to Buckley Space Force 

Base Airport’s (BKF) Class D airspace— 

has merged both airport’s surface areas, 

which will require transiting VFR 

aircraft to utilize 500 feet of Class E 

airspace area between the top of BKF 

Class D airspace and the floor of the 

Denver Class B airspace. Additionally, 

APA’s Class D airspace is expanded 

from a 4.4-mile radius to a 6.4-mile 

radius between the airport’s 083° 

bearing clockwise to the 201° bearing. 

Due to rising terrain, this modification 

will better contain instrument 

departures until reaching 700 feet above 

the surface of the earth. APA’s Class D 

airspace has also been extended from a 

4.4-mile radius to a 4.9-mile radius 

between the airport’s 201° bearing 

clockwise to the 347° bearing to better 

contain aircraft conducting a circling 

maneuver at the airport. 

The Class E airspace designated as an 

extension to a Class D or Class E surface 

area is revoked. This airspace is 

unnecessary given the airport’s newly 

defined Class D airspace lateral 

dimensions provide suitable 

containment of applicable instrument 

flight procedures. 

Lastly, this action amends the 

administrative text to the airport’s legal 

description. The city’s name is amended 

from Englewood to Denver. The 

airport’s geographic coordinates are 

amended to 39°34′12′′ N, long 

104°50′57′′ W. The part-time language 

has been removed as the facility 

operates 24 hours daily. 

Regulatory Notices and Analyses 

The FAA has determined that this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. It, therefore: (1) is not a 

‘‘significant regulatory action’’ under 

Executive Order 12866; (2) is not a 

‘‘significant rule’’ under DOT 

Regulatory Policies and Procedures (44 

FR 11034; February 26, 1979); and (3) 

does not warrant preparation of a 

regulatory evaluation as the anticipated 

impact is so minimal. Since this is a 

routine matter that only affects air traffic 

procedures and air navigation, it is 

certified that this rule, when 

promulgated, does not have a significant 

economic impact on a substantial 

number of small entities under the 

criteria of the Regulatory Flexibility Act. 

Environmental Review 

The FAA has determined that this 

action qualifies for categorical exclusion 

under the National Environmental 

Policy Act in accordance with FAA 

Order 1050.1F, ‘‘Environmental 

Impacts: Policies and Procedures,’’ 

paragraph 5–6.5.a. This airspace action 

is not expected to cause any potentially 

significant environmental impacts, and 

no extraordinary circumstances exist 

that warrant preparation of an 

environmental assessment. 

Lists of Subjects in 14 CFR Part 71 

Airspace, Incorporation by reference, 

Navigation (air). 

The Amendment 

In consideration of the foregoing, the 

Federal Aviation Administration 

amends 14 CFR part 71 as follows: 

PART 71—DESIGNATION OF CLASS A, 

B, C, D, AND E AIRSPACE AREAS; AIR 

TRAFFIC SERVICE ROUTES; AND 

REPORTING POINTS 

■ 1. The authority citation for 14 CFR 

part 71 continues to read as follows: 


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104408 Federal Register / Vol. 89, No. 246 / Monday, December 23, 2024 / Rules and Regulations 

Authority: 49 U.S.C. 106(f), 40103, 40113, 

40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959– 

1963 Comp., p. 389. 

§ 71.1 [Amended] 

■ 2. The incorporation by reference in 

14 CFR 71.1 of FAA Order JO 7400.11J, 

Airspace Designations and Reporting 

Points, dated July 31, 2024, and 

effective September 15, 2024, is 

amended as follows: 

Paragraph 5000 Class D Airspace. 

* * * * * 

ANM CO D Denver, CO [Amended] 

Centennial Airport, CO 

(Lat. 39°34′12′′ N, long. 104°50′57′′ W) 

That airspace extending upward from the 

surface to but not including 8,000 feet MSL 

within 3.9 miles northwest and 4.6 miles 

southeast of the airport’s 038° bearing 

extending to 4.6 miles northeast, within a 

6.4-mile radius from the airport’s 083° 

bearing clockwise to the 201° bearing, and 

within a 4.9-mile radius from the airport’s 

201° bearing clockwise to the 347° bearing. 

* * * * * 

Paragraph 6004 Class E Airspace 

Designated as an Extension to a Class D or 

Class E Surface Area. 

* * * * * 

ANM CO E4 Englewood, CO [Removed] 

* * * * * 

Issued in Des Moines, Washington, on 

December 17, 2024. 

B.G. Chew, 

Group Manager, Operations Support Group, 

Western Service Center. 

[FR Doc. 2024–30530 Filed 12–20–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF COMMERCE 

Bureau of Industry and Security 

15 CFR Parts 742 and 774 

[Docket No. 241212–0324] 

RIN 0694–AJ83 

Implementation of Certain Australia 

Group Decisions 

AGENCY: Bureau of Industry and 

Security, Department of Commerce. 

ACTION: Final rule. 

SUMMARY: The Bureau of Industry and 

Security (BIS) is amending the Export 

Administration Regulations (EAR) to 

implement changes agreed to by 

Australia Group (AG) member countries 

at recent meetings. These include 

controlling: instruments for the 

automated chemical synthesis of 

peptides (automated peptide 

synthesizers), dipropylamine, and 

neosaxitoxin; and revising the controls 

for botulinum toxins, toxic gas 

monitors, and centrifugal separators. 

This rule also makes minor conforming 

changes for the new controls and 

revisions to existing controls. 

DATES: This rule is effective December 

23, 2024. 

FOR FURTHER INFORMATION CONTACT: 

For questions on pathogens and 

toxins discussed in this rule, contact Dr. 

Lauren Reynolds, Chemical and 

Biological Controls Division, Office of 

Nonproliferation and Foreign Policy 

Controls, Bureau of Industry and 

Security, Telephone: (202) 482–2794, 

Email: Lauren.Reynolds@bis.doc.gov. 

For all other questions pertaining to 

this rule, contact Logan Norton, 

Regulatory Policy Division, Office of 

Exporter Services, Bureau of Industry 

and Security, U.S. Department of 

Commerce, (202) 482–1762, Email: 

RPD2@bis.doc.gov. 

SUPPLEMENTARY INFORMATION: 

The Australia Group 

BIS is amending the Export 

Administration Regulations (EAR) (15 

CFR parts 730–774) to reflect the 

decisions made at the 2023 

Intersessional Meeting in Rome, Italy, 

the 2023 Plenary Meeting in Paris, 

France, the 2024 Intersessional Meeting 

in Berlin, Germany and the 2024 

Plenary Meeting in Paris, France. The 

Australia Group (AG) is a multilateral 

forum consisting of 42 participating 

countries and the European Union. 

These participants maintain export 

controls on a list of chemicals, 

biological agents, and related equipment 

and technology that could be used in a 

chemical or biological weapons 

program. The AG periodically reviews 

items on its control list to enhance the 

effectiveness of participating 

governments’ national controls and to 

achieve greater harmonization among 

these controls. 

Regulatory Changes 

As stated above, this rule implements 

changes agreed upon at the 2023 and 

2024 Intersessional and Plenary 

Meetings of the AG. The changes made 

at each meeting are described below in 

chronological order. 

2023 Intersessional 

The AG meeting of the 2023 

Intersessional determined that not all 

AG members assess gas detection 

systems with the same criteria. Prior to 

this rule, the control text only referred 

to the ability to detect chemical warfare 

agents or AG controlled precursors at a 

concentration of less than 0.3 mg/m3. 

This made it unclear if a gas detection 

system with a noise level near 0.3 mg/ 

m3 was controlled, without taking into 

account the instrument detection limit. 

As a result, the AG agreed to a uniform 

way of applying the control language on 

toxic gas monitors and monitoring 

systems. To clarify the text, the AG 

agreed to the new term called ‘minimum 

detection limit’ and a corresponding 

definition, both detailed below, to the 

control text. 

The AG agreed to two changes to 

ECCN 2B351. First, in item paragraph .a, 

‘‘at concentrations of less than’’ is 

replaced with ‘‘‘minimum detection 

limit’ of’’, which is still followed by the 

0.3 mg/m3 concentration measurement. 

Second, it adds a technical note 

defining ‘minimum detection limit’ as 

the lowest detectable concentration of 

the analyte required to produce a signal 

greater than three times the standard 

deviation of the toxic gas monitor’s or 

monitoring system’s signal when 

measuring a blank sample; alternatively, 

in the case of toxic gas monitors or 

monitoring systems having a deadband 

or programmed zero suppression, the 

‘minimum detection limit’ is the lowest 

detectable concentration required to 

produce a reading. 

2023 Plenary 

In the 2023 Plenary Meeting, the AG 

reached consensus on three primary 

revisions, mostly impacting ECCNs 

1C350.d and 1C351.d. 

ECCN 1C350.d had multiple changes. 

In February 2020 the AG added a 

number of precursors to the chemical 

weapons precursors control list. 

However, dipropylamine, which is also 

useful for the synthesis of the 

corresponding AG-controlled 

precursors, was not yet controlled. The 

AG determined that it was important to 

address this issue by controlling 

dipropylamine. Under ECCN 1C350, 

(C.A.S. #142–84–7) Dipropylamine was 

added as .d.11. The items that had been 

listed in item paragraphs .d.11 through 

.d.49 remain, with their item paragraphs 

shifting up by a factor of one. 

Botulinum toxins can be neurotoxins 

or non-neurotoxins. Previously, the AG 

had not specifically stated if only 

botulinum neurotoxins should be 

captured by ECCN 1C351.d.3 or if all 

botulinum toxins are included. The AG 

agreed to update the language to 

‘‘botulinum neurotoxins’’ noting the 

greater risk of their use in chemical and 

biological weapons activities relative to 

other botulinum toxins. Under ECCN 

1C351, item paragraph .d.3 was revised 

to read as ‘‘botulinum neurotoxins’’ as 

opposed to previously reading 

‘‘botulinum toxins.’’ Conforming 


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